Erratum to:

Radiologie 2023

https://doi.org/10.1007/s00117-023-01184-x

We acknowledge that we have taken some text passages from the section “Sodium(23Na) imaging of cartilage repair tissue” of this review article [1] from previous publications by the same author(s) [2,3,4]. We apologise for the inappropriate overlap between our own publications which was related to original text material for a large project application in the past which was later used for publications of our group. However, there is still sufficient new material and literature in the article to justify its publication.